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Flush Interior Wooden Doors

Flush interior wooden doors deliver a sleek, unadorned appearance that fits effortlessly into modern homes, apartments, and commercial interiors. Their flat surface and minimalist lines create a sense of calm sophistication while offering practical benefits like easy cleaning and versatile styling. To further strengthen your project, explore our Solid Core Interior Wooden Doors, which provide enhanced heft and resistance to daily wear. When safety regulations demand certified performance, Fire Rated Interior Wooden Doors offer tested protection with ratings up to 60 minutes. For spaces where quiet matters—such as bedrooms, studies, or meeting rooms—Soundproof Interior Wooden Doors integrate dense cores and perimeter seals to cut noise dramatically. And if you desire the warmth of natural wood grain, Oak Interior Wooden Doors bring timeless character with genuine veneer faces. These flush doors are carefully engineered to combine form and function—ideal for both replacement work and new construction. Key design and construction features include:

Whether you are updating a whole house or specifying doors for a commercial fit‑out, flush interior wooden doors bridge the gap between clean aesthetics and dependable everyday performance. They pair equally well with painted trim for a crisp look, or with natural wood frames to keep the organic theme consistent throughout. Architects and interior designers repeatedly choose this style because it does not compete with other visual elements, allowing furnishings, lighting, and artwork to take center stage.


Every Flush Interior Wooden Doors unit is manufactured under strict quality control, using precision tooling and certified raw materials to ensure long‑term stability. The doors are designed to resist warping, delamination, and surface blemishes even in fluctuating humidity—typical challenges in bathrooms, kitchens, and laundry areas. Standard sizing covers the vast majority of residential openings, while custom dimensions are available for commercial projects or irregular rough openings. The table below compiles the essential technical data to assist in specification and ordering:

Flush Interior Wooden Doors – Specifications
Core typeHollow (honeycomb or cellular), solid particleboard, fire‑rated mineral, solid core acoustic
Nominal thickness1-3/8″ (35 mm), 1‑3/4″ (44 mm), 45 mm
Standard widths24″, 26″, 28″, 30″, 32″, 36″ (610–915 mm)
Standard height80″ (2,032 mm); 84″ (2,134 mm) available on request
Skin materialMDF, HDF, plywood, genuine oak veneer
Face finishPrimed white, RAL‑matched pre‑painted, clear satin lacquer on oak
Fire rating (core‑dependent)FD20, FD45, FD60
Sound Transmission Class (STC)30–42 (solid core and acoustic core models)
Edge detailSquare (paint grade), beveled, lipped, or pre‑grooved for seals
Lipper styleMatching veneer lipping or durable PVC edge
Hardware prepLock bore (2-1/8″), hinge pockets (3‑5 hinges), optional flush bolt prep
CertificationFSC‑certified materials available; fire‑rated models tested to EN 1634 / BS 476
Installation follows common carpentry practices: doors can be trimmed up to a small allowance on all edges (refer to the included cutting chart) without compromising the core integrity. For pre‑hung sets, the frame and architrave are factory‑assembled and shipped with the slab hung, drastically reducing installation time. Maintenance is minimal—wipe surfaces with a damp microfiber cloth and mild soap; avoid abrasive pads on painted or veneered faces. For long‑term care on lacquered oak doors, an occasional application of a suitable wood conditioner will preserve the rich color and protective layer. Our team can provide complete hardware packs, including hinges, latch bolts, and weather seals for soundproof requirements, ensuring a seamless procurement process. Custom designs—such as concealed hinge preparation, irregular dimensions, or matched paneling for closets—can be accommodated through our advanced CNC production line. Lead times for bespoke sizes are typically 2–3 weeks for primed or painted finishes, and an extra week for natural oak veneer due to careful matching of grain patterns. Each door is individually wrapped and packed in protective corners before shipment to guarantee pristine condition upon arrival.

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