Natural Oak Wide Plank Engineered Flooring 220mm CD Grade | AMUER AM-14
- Model
- AM-14
Review
Description
AMUER · OAK 3-LAYER · CHINA FACTORY
AM-14 CD Grade Natural Oak Wide Plank Flooring — 220mm, UV Lacquer, Vivid Grain
AM-14 is a 220mm wide long plank engineered oak floor in CD natural character grade with a brushed surface and UV lacquer finish -- 15/4mm three-layer construction with a 3mm solid oak wear layer -- delivering the warm honey-gold tone and vivid, flowing grain character of European oak in CD grade at 220mm wide plank format: the grain is active, the medullary rays are prominent, and the natural figure of the wood is the defining visual element of the floor.
CE · FSC Chain of Custody · EUDR · ISO 9001:2015
arboren@arboren.com
www.amuerflooring.com
Full Product Specification
| Specification | AM-14 Detail |
| Product Code | AM-14 |
| Species | Top layer European Oak; Poplar core and backing layer |
| Construction | 3-Layer Engineered Wood Flooring — cross-ply solid timber core for dimensional stability |
Total Thickness | 15mm |
Top Layer | 4mm solid European oak -- supports 2-3 full sanding and refinishing cycles |
Board Width | 220mm -- wide plank format |
Board Length | 2,200mm |
Colour | Natural -- warm honey-gold; the unmodified natural tone of European oak at CD grade; richer and warmer than EF-grade natural oak; medullary rays and grain figure contribute golden tonal variation |
Surface Treatment | Brushed -- wire-brushed to remove soft early-wood fibres; late-wood grain slightly raised; natural directional texture; grain figure and medullary rays read more clearly on brushed than smooth surface |
Finish | UV Lacquer -- UV-cured hard surface lacquer; factory-applied; satin sheen; maximum durability; low maintenance; no periodic re-oiling |
Grading | Grading CD -- Natural Character Grade: fresh knots up to 45mm with no limit on number, dead knots up to 4 per m² (30mm diameter), dark grain lines up to 3 per m², no sapwood, structure and colour variation allowed -- vivid flowing grain and prominent medullary rays; more consistently characterful than AM-01's blended ABCD selection, calmer than DE and EF grade |
Installation | Click floating (Uniclic-compatible) -- no adhesive required |
Underfloor Heating | Compatible -- maximum surface temperature 27 degrees C (hydronic and electric) |
Emission Class | E1 |
Certifications | CE (EN 13489) · FSC Chain of Custody · EUDR · ISO 9001:2015 |
MOQ | 200 m² per SKU |
Lead Time | 45 business days (standard) — 10–15 days for repeat orders with spec on file |
Packaging | Carton box with protective foam · Custom OEM packaging available |
Production | AMUER China Factory — 50,000 m² · ~300 workers · Est. 1997 |
Warm, Wide, and Alive -- AM-14 CD Grade at 220mm
AM-14 is a 220mm wide plank engineered oak floor in CD natural character grade with a brushed surface and UV lacquer finish -- 14/3mm three-layer construction with a 3mm solid oak wear layer that delivers a floor with genuine visual energy: the warm honey-gold tone of natural European oak at CD grade, where flowing medullary rays catch the light, oval grain figures develop across the full 220mm width, and the brushed UV lacquer surface preserves every grain detail at maximum durability.
CD grade is a distinct natural character specification with its own defined tolerances -- fresh knots up to 45mm with no limit on number, dark grain lines, and no sapwood inclusion, alongside natural structure and colour variation. It sits in the middle of the AMUER grading range: more consistently characterful than AM-01's blended ABCD selection (which draws from the cleaner AB, ABC, and CD grades together), and calmer than the DE and EF grades that permit larger knots, unrestricted dark lines, and broader sapwood presence. At CD grade, the grain is genuinely flowing and characterful: boards carry knots up to 45mm, natural colour variation, and the active grain movement that makes European oak distinct from any other hardwood species.
At 220mm wide, AM-14 provides the extended canvas that allows the full development of CD-grade grain features. The oval grain figures that form in the centre of the board -- where the growth rings of the tree sweep through the widest part of the plank -- are fully resolved at 220mm in a way that they cannot be in a narrower board. The medullary rays, which radiate from the centre of the tree outward, cross the full width of the board at varying angles, producing a surface of genuine visual depth that changes in character as the viewing angle and lighting conditions change through the day.
UV lacquer finish provides the durability and low maintenance that make AM-14 suitable for any residential application and many commercial contexts. The lacquer is UV-cured in the factory, forming a hard transparent film over the brushed oak surface at satin sheen. No periodic re-oiling is required; daily sweeping and occasional damp mopping maintain the floor throughout its life. When eventual refinishing is needed, AM-14's 3mm wear layer supports 2-3 full sanding cycles.
Design Guide
AM-14's vivid CD grain character and warm honey-gold tone make it a floor with genuine visual energy. Two interior contexts where AM-14's specific qualities are most valued:
Warm Transitional
AM-14's warm honey-gold CD grain is the perfect floor for transitional interiors that blend contemporary space planning with warm, natural materials. Against warm white walls, the honey-gold tone glows; aged oak furniture picks up the amber tones of the CD grade variation; linen and wool textiles provide softness and texture to complement the brushed UV lacquer surface. The flowing grain figure adds visual interest without imposing a specific style direction.
Country Contemporary
In a country house or rural contemporary interior, AM-14 CD grade provides the floor material that reads as genuinely natural and appropriate to its setting. The grain drama of CD grade references historical timber flooring without requiring reclaimed material; the UV lacquer finish provides the durability that period properties need. Against limewash walls, natural stone surfaces, and original joinery, AM-14 completes the palette of natural materials.
Installation & Room Suitability
Click Installation (Floating)
AM-14 uses Uniclic-compatible click floating installation. At 220mm wide plank, careful subfloor preparation ensures an even, stable floor.
•No adhesive required -- click lock floating installation
•Subfloor flatness: 3mm per 2m maximum
•Expansion gap at all walls: minimum 12mm
•48-hour acclimatisation at room temperature before installation
•Install perpendicular to natural light for best grain appearance
•Stagger end joints: minimum 300mm between rows
Pre-fitted foam or combination underlay recommended
Underfloor Heating
AM-14 is compatible with both hydronic and electric UFH systems. The 3-layer engineered construction resists the dimensional movement solid wood experiences under heating cycles.
✓Maximum surface temperature: 27 degrees C
✓Switch off heating 24 hours before installation
✓Restart gradually: 1-2 degrees C per day to operating temperature
✓Maintain indoor humidity 40-65% RH year-round
✓UV lacquer handles UFH cycles without cracking risk
Thermal resistance 0.15 m2 K/W maximum
Room Suitability
| Room / Application | Suitability | Notes | |
| Living Rooms & Open Plan | Excellent | CD grain drama and warm honey-gold tone create a vibrant, warm living room floor. 220mm boards produce fewer joints and a more seamless quality at scale. | |
| Dining Rooms | Excellent | At eye level from a seated position, the flowing grain figure and medullary rays of CD grade are fully visible and reward attention. Ideal room for AM-14's grain character | |
Bedrooms | Excellent | Warm honey-gold tone creates an inviting bedroom environment. CD grain adds visual interest without creating a restless surface. | |
Heritage & Country Houses | Excellent | CD grade natural oak at 220mm is a highly appropriate specification for country houses and traditional interiors -- the grain drama references historic timber floors without requiring reclaimed material. | |
Hallways | Very Good | UV lacquer handles traffic well. CD grain conceals minor wear marks better than select grades. Re-oil not required. | |
Home Offices | Very Good | Warm, characterful environment. UV lacquer resists desk chair use well with a chair mat. | |
Kitchen | Good | UV lacquer more water-resistant than oil. Seal all board joints. Wipe spills promptly. | |
Heritage Hospitality | Very Good | CD grade natural oak wide plank is a warm, premium specification for design-led retail and hospitality. | |
Bathrooms | Not Recommended | Not suitable for persistent moisture -- specify SPC flooring. | |
Care & Maintenance -- UV Lacquer Finish
| Task | Method | ||
| Daily | Dry sweep or vacuum with soft brush head -- direction of grain; no beater bar | ||
| Weekly | Damp mop with well-wrung cloth and pH-neutral lacquered floor cleaner -- no standing water | ||
| Spills | Wipe promptly -- UV lacquer is more water-resistant than oil but standing liquids can penetrate board joints over time | ||
Scratches | CD grain texture and warm honey-gold tone conceal minor surface scuffs effectively. Deep scratches require professional spot lacquer repair. | ||
Long-term | UV lacquer does not require periodic re-oiling or re-coating under normal residential use. When eventual refinishing is needed, the 3mm wear layer supports 2-3 full sanding cycles. | ||
Never | Steam mop · abrasive cleaners · bleach · solvent-based products · oil or wax products (will cloud lacquer) · re-oiling (this is a lacquered floor) | ||
Certifications & Factory
Manufactured by AMUER — China Factory
AM-14 is manufactured at AMUER's China factory: 50,000 m2, approximately 300 workers, producing engineered hardwood flooring since 1997. ISO 9001:2015 quality management covers raw material intake, in-process checks, UV lacquer finish audit, board width tolerance, and pre-shipment inspection. Every AM-14 shipment carries the following as standard:
✓CE Marking (EN 13489) -- required for all EU market sales
✓FSC Chain of Custody -- sustainable timber
✓EUDR — EU Deforestation Regulation compliance
✓E1 Emission Class -- lowest European formaldehyde standard
✓ISO 9001:2015 -- certified quality management system
FAQ
Q1. What is CD grade natural oak wide plank engineered flooring?
AMUER AM-14 is 220mm wide, 2,200mm long, 14/3mm total thickness with a 3mm solid oak wear layer, CD grade, brushed surface, UV lacquer, and click installation. The CD grade specification produces a floor with genuine visual energy -- fresh knots up to 45mm, dark grain lines, and no sapwood, with natural structure and colour variation throughout -- more consistently characterful than AM-01's blended ABCD selection, though calmer than the DE and EF grades further along the range. The warm honey-gold natural tone of European oak expresses itself fully at this grade.
Q2. What is the difference between AM-14 CD grade and AM-05 DEF grade at 220mm?
AM-14 is CD grade -- fresh knots up to 45mm, dark grain lines, no sapwood, natural structure and colour variation, with prominent medullary rays and a richer warm honey-gold tone; AM-05 is DEF grade -- a broader specification spanning from moderate through to unrestricted character, permitting larger knots, freely occurring dark grain lines, and sapwood up to 30% of board width -- both are 220mm wide brushed products with UV lacquer finish.
The practical choice: specify AM-14 when a defined, moderately vivid grain character with prominent medullary ray figure is wanted. Specify AM-05 when a bolder, less restricted natural character is acceptable, along with the extra refinishing cycles the thicker 4mm wear layer provides. AM-14 has a 14/3mm construction (3mm wear layer, 2-3 sanding cycles); AM-05 has a 15/4mm construction (4mm wear layer, 3-4 sanding cycles). Request samples of both before specifying.
Q3. What are medullary rays in oak flooring and why do they appear in AM-14?
Medullary rays are structural cells in oak that radiated from the centre of the tree outward as it grew -- when sliced to make boards, these rays appear as silver-gold flashes or streaks that cross the grain direction at varying angles, producing a characteristic shimmer unique to oak among common European hardwoods.
In AM-14 at CD grade and 220mm width, the medullary rays are particularly prominent because the wider board captures more of the radial cross-section of the log where rays are most visible, and the CD grade does not filter them out as select or prime grades would. The brushed UV lacquer surface allows the rays to catch light clearly across the board face. At raking light -- morning or evening sun across the floor -- the rays can produce a striking silver-gold shimmer across the honey-gold ground of the natural oak tone.
Q4. How does CD grade compare to ABCD, EF, and DEF grades in engineered oak?
CD grade sits between AM-01's blended ABCD selection and the bolder DE, EF, and G grades -- CD has knots up to 45mm with no limit on number, dark grain lines, no sapwood, and natural structure and colour variation, without the unrestricted knots and broader sapwood presence of the grades further along the range.
In the AMUER grading range, character increases progressively: ABCD (drawing from the cleanest AB, ABC, and CD-grade boards) is the most consistent and restrained; CD as a standalone grade carries a defined, moderate level of natural character; DE and EF permit progressively larger knots, dark lines, and sapwood without restriction; G is the boldest, most expressive specification in the range. AM-14 CD grade sits in the calmer-to-middle portion of this range -- genuinely characterful, but well short of the unrestricted natural variation found in EF or G grade boards.
Q5. Can AM-14 be used over underfloor heating?
Yes -- AM-14 is compatible with both hydronic and electric underfloor heating, maximum surface temperature 27 degrees C.
The 3-layer engineered construction resists the dimensional movement solid wood experiences under heating cycles. Switch off heating 24 hours before installation and restart gradually after installation, increasing by 1-2 degrees C per day. Maintain indoor humidity at 40-65% RH year-round. UV lacquer handles UFH thermal cycling without cracking risk.
Q6. Can AM-14 be sanded and refinished?
Yes -- AM-14 has a 3mm solid oak wear layer supporting 2-3 full sanding and refinishing cycles over the floor's lifespan.
After sanding, AM-14 can be re-finished with UV lacquer to restore the natural oak appearance, or switched to a different finish if preferred. UV lacquer refinishing requires professional equipment; this is not a DIY operation. For most well-maintained residential applications, AM-14 should not require full sanding for 15-20 years.
Q7. Is UV lacquer the right finish for CD grade oak at 220mm?
Yes -- UV lacquer is an excellent finish choice for AM-14 because it provides maximum surface durability and low maintenance requirements without diminishing the visual quality of the CD grain, while its hard surface film seals the brushed oak texture and allows the warm honey-gold tone and grain figure to read clearly through the satin sheen.
The alternative, natural oil, would enhance the tactile quality and patina development of the floor at the cost of periodic maintenance. For residential use at 220mm wide plank where durability and ease of maintenance are priorities alongside grain character, UV lacquer is the appropriate finish. For buyers who prioritise open-wood feel and patina development over maintenance convenience, AM-07 wax oil specification should be considered.
Q8. What is the minimum order for AM-14?
The standard minimum order for AMUER AM-14 is 200 m2 per SKU from our China factory.
Free samples are available -- email arboren@arboren.com. Samples dispatched to EU, US, Australian, and most international addresses within 2-3 business days. We recommend requesting samples of both AM-14 (CD grade) and AM-05 (DEF grade) to compare the grain character at the same 220mm width before specifying.
Related
AM-05 -- Natural Oak 220mm DEF
Same 220mm brushed UV lacquer click format. DEF grade -- a broader, bolder natural character range than AM-14's CD, permitting larger knots and more sapwood. 15/4mm construction with thicker 4mm wear layer.
AM-19 -- Pearl Grey Oak 260mm
CD grade in 260mm with hand scraping and natural oil. Compare AM-14 CD brushed UV lacquer with the same grade in a wider, differently-finished format.
AM-06 -- Hand Scraped Natural Oak 260mm
CD grade in 260mm with hand scraping and natural oil. Compare AM-14 CD brushed UV lacquer with the same grade in a wider, differently-finished format.
Contact Us
Specify AM-14 for Your Next Project
Natural Oak · 220mm Wide Plank · CD Grade · Brushed · UV Lacquer · Click
15/4mm · 2,200mm length · CE & FSC certified · Factory direct AMUER China · 200 m2 MOQ
arboren@arboren.com · www.amuerflooring.com
