Stainless Vertical Dark Walnut Building Entrance Door TR531

Product CodeTR531

Dark walnut body with a gridded center pane and navy blue vertical side panels. Product code: TR531. Made to measure after an on-site survey.

Leaf construction: single glazed leaf + double vertical side panel
Color / finish: dark walnut
Handle: curved stainless steel handle
Design language: modern

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Product codeTR531

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Made in our own factory

Lifetime manufacturing warranty

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This building entrance door model carries the code TR531: a dark walnut body with a gridded center pane and navy blue vertical side panels. Production begins after your order: we first carry out an on-site survey, then manufacture the leaf to fit your door opening. The catalog finish is a dark walnut tone.

Product Code: TR531

Glass and Surface Details

The leaf structure is a single glazed leaf with twin vertical side panels. The leaf carries vertical stainless steel bars. The finish is a dark walnut tone.

The model features a gridded center pane and navy blue side panels. It is completed with a curved stainless steel handle. The finish in the image is the catalog selection — a different surface can be chosen from our cladding options.

Which Entrances Suit This Model?

It is chosen primarily for commercial building entrances and housing developments. Because the side sections extend the opening, it suits wide-fronted entrances rather than narrow ones — and brings daylight into the hall. We compare where a villa door differs from a building entrance door on our villa door vs. building entrance door page.

Production and Installation Process

Measurements are taken from the door opening, not the existing leaf; we describe the process step by step on our how to measure page. Frame, sheet thickness, infill and lock values are listed in the specification table below. Sheet steel choices are compared on the galvanized or DKP sheet steel page, lock alternatives on the lock systems page. After delivery, our warranty and service coverage applies; see the care and lifespan page for keeping the surface protected.

Frequently Asked Questions

How much is the TR531?

The price cannot be quoted before measuring. The opening's dimensions and your cladding, glass and lock choices directly affect the total; the survey is free and is followed by an itemized quote. See steel door prices for details.

Can I order this model in a color other than dark walnut?

It can be done. Dark walnut is only the finish photographed, not a fixed choice — you can pick from the alternatives on our cladding options page.

Can the glass in the TR531 be changed?

Yes. The glass shown is this model's catalog finish; it can be produced in different colors and patterns, provided Şişecam 5+5 mm laminated glass is used. A glassless version is also possible.

How is the TR531 measured?

Our survey team measures on site. If you would still like to know the process, our how to measure page explains the three points we measure from.

How can I order the TR531 model?

You can fill out the pre-order form on our site or reach us at 0532 689 21 46. Mentioning product code TR531 in your request speeds things up. You can browse other building entrance door models on our building entrance door models page.

Specifications

Product code	TR531
Category	Building Entrance Steel Door Models
Leaf construction	single glazed leaf + double vertical side panel
Color / finish	dark walnut
Surface pattern	vertical stainless steel bars
Handle	curved stainless steel handle
Design language	modern
Push-to-open system	self-closing system within 6 seconds
Door closer	size 5 door closer
Access system	Optional card or keypad entry
Sheet thickness	Frame 2 mm (0.079"), leaf 1.5+1.5 mm (0.118" total) DKP steel sheet (Ereğli A1)
Frame	Ereğli A1 grade 2 mm (0.079") DKP steel sheet, omega-bent
Frame reinforcement	Lock and hinge areas reinforced with 3 mm (0.118") DKP steel sheet
Leaf	Ereğli A1 grade 1.5 mm (0.059") + 1.5 mm (0.059") omega-bent, monoblock-reinforced pan system
Leaf reinforcement	Lock and hinge area reinforced with 3 mm (0.118") angle bar
Leaf thickness	Bare metal 70 mm (2.76") — 90 mm (3.54") in total
Infill	80 kg/m³ rock wool
Lock surround	integrated with 1 mm (0.039") grade 304 stainless steel
Hinge	3 adjustable 20 mm (0.787") ball-bearing pin hinges
Hinge reinforcement	5 mm (0.197") thick flat bar
Fixed pin	5 units on the hinge side, 20 mm (0.787") diameter
Gasket	Silicone-based rubber gasket on 3 sides of the frame, 4 sides of the leaf (insect-, dust- and airtight)
Surface finish	10 mm (0.394") Camsan first-grade iroko
Finish options	Powder coating, natural wood, marine plywood, iroko wood or composite compact laminate
Varnish	Polyurethane infill, 90-micron coverage rating
Polish	Akzo Nobel
Accessories	first-grade 304 stainless steel or 316 Häfele stainless brass (depending on climate conditions)
Installation	One-piece inner/outer frame, clamp-grip jointing, fastened with M8 bolts
Frame-to-wall gap	1 cm (0.394"), filled with polyurethane foam
Production	Manufactured to custom on-site measurements
Warranty	Unlimited coverage for manufacturing defects — 2-year official warranty certificate
Lock system	Optional hook-bolt, monoblock or central — Italian Mottura or Mul-T-Lock
Glass section	square-divided center glass, navy blue side panels
Glass type	Şişecam 5+5 mm (0.394" total) laminated glass (impact resistant)

Frequently Asked Questions

What is the lead time for a custom villa door?

Production takes 20-25 days from the day the specification is approved. Custom detailing — carved cladding, oversized leaves, special glass — can extend that, and we confirm the date in writing before starting. Ocean freight time to the destination port is added on top.

How are steel doors packaged for sea freight export?

Each door is crated in a wooden case built to its own dimensions, with edge protection and corner blocks, then strapped to prevent movement inside the container. Full container loading is used for project quantities; single doors and small orders ship as groupage cargo.

What measurements do you need to quote?

The width, height and wall thickness of the rough opening, in millimetres or in inches — whichever your drawings use. Photographs of the opening from inside and outside help us confirm the swing direction and the frame detail. No site visit is needed.

Can you manufacture to imperial (inch) dimensions?

Yes. An opening given as 36 x 80 inches is manufactured to that dimension directly. Nothing is converted to a nearest metric size and rounded, so the door arrives at the size your drawing specifies.

Who installs the door at the destination?

Your own contractor. Every shipment includes an installation drawing and the frame fixing set, and the frame is designed to be set into the opening without special tooling.

What export documents travel with the shipment?

Commercial invoice, packing list and certificate of origin, plus whatever else the customs broker at the destination requires. Documentation is prepared before the container leaves the factory.