What makes a door "prefab"?

Prefab doors are built to fixed, standard architectural openings rather than to a site measurement. The engineering, tooling and glass sizes are already settled, so the door is fabricated from a known recipe instead of a new drawing every time. Same materials and same shop as our custom work — without the custom lead time.

Can I still get a custom size?

Yes — that is the WiseGlass NY side of the house. If your opening falls outside the standard range, or you want a configuration we do not stock, we will quote it as a custom fabrication.

In the New York metro area we install with our own crews. Outside it, doors ship crated with hardware, a template and instructions, and any competent finish carpenter can hang them.

Do you offer trade pricing?

Yes. Builders, architects, interior designers and general contractors get trade pricing and volume tiers. Send us your business details and we will set up an account.

What frame finishes are available?

Matte black and off-white powder coat are stocked, and bronze anodized is available to order. All finishes are applied to extruded aluminum profiles.

Prefab.Studio — Premium Prefab Interior Glass Doors

Q: Is the glass tempered?

Yes. Every lite is fully tempered safety glass and permanently etched with its safety mark, meeting the requirements for glass in doors.

01 — The studio

We stopped waiting for the measurement.

For seven years WiseGlass NY has built interior glass one opening at a time — measured on site, drawn, fabricated in Brooklyn, installed by our own crews. More than thirteen hundred of them.

Somewhere around project nine hundred a pattern became impossible to ignore: the same handful of openings, over and over. A 36-inch office door. A 60-inch French pair into a dining room. A 32-inch slider on a powder room. The drawing changed; the door didn't.

So we took the recipes we had already perfected, fixed the sizes, tooled them properly and put them into production. That is Prefab.Studio — not a lesser product line, but our own catalogue: the exact doors we build for architects, engineered once and held ready. Nothing about the glass, the extrusion or the hardware is compromised. Only the waiting is.

If your opening falls outside the range, we still build custom. That is the other half of the shop — and it is a phone call away.

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Projects since 2018

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Prefab models

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Glass finishes

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Architects & designers

03 — The collectionSix configurations

Six doors. Every opening we kept being asked for.

Each model is fixed in configuration and hardware, and open in size within its range, glass and frame finish. Pick a line, pick a leaf size, pick a glass — that is the whole specification.

PS-01

Single Swing

Configure

Leaf: One, side hinged
Width: 30 — 36 in
Height: 80 — 96 in
Swing: One direction, 110°

PS-02

A closed pair of black framed French glass doors with four-lite grids and long pull bars

French Pair

Configure

Leaf: Two, matched
Width: 48 — 72 in
Height: 80 — 96 in
Swing: One direction, 110°

PS-03

Single top-hung sliding glass door with a black frame open across a hallway wall

Single Slider

Configure

Leaf: One, top hung
Width: 30 — 42 in
Height: 80 — 96 in
Track: Soft-close, wall mount

PS-04

Pivot

Configure

Leaf: One, top & bottom pivot
Width: 32 — 42 in
Height: 84 — 96 in
Swing: Both directions, 135°

PS-05

A pair of gray tinted glass doors in black frames closed across a dining room opening

Double Slider

Configure

Leaf: Two, bypass
Width: 60 — 84 in
Height: 80 — 96 in
Track: Shared header, soft-close

PS-06

Barn style sliding glass door in frosted glass on an exposed black track

Barn Slider

Configure

Leaf: One, exposed track
Width: 32 — 42 in
Height: 80 — 96 in
Glass: Frosted or reeded

Configure yours in The Bench Live 3D · exact price · outside the range we still build custom.

04 — GlassSeven finishes

Choose how much you let through.

Interior glass door installation shown behind a sample pane

Standard clear float. The most transparent, most economical option — and the one that disappears most completely into a wall.

All lites fully tempered

05 — FrameThree finishes

Extruded aluminium, finished properly.

Slim structural profiles, mitred and welded, then powder coated or anodised. Not a wrap, not a paint — a bonded finish that will not chip off a corner in year three.

Matte Black

The signature. A deep, low-sheen black that reads as blackened steel and holds a crisp edge against white plaster.

Off-White

A warm architectural white for trim-matched openings, where the frame should recede and only the grid should register.

Bronze Anodised

Made to order. A darkened bronze with visible depth, paired most often with reeded or bronze-tinted glass.

06 — SpecificationPS-01 shown

What is actually in the crate.

01

Header channelAluminium U-channel, face fixed to the rough opening, conceals the hinge plate and levels the leaf.

02

Concealed-plate hingesTwo per leaf, set roughly 8 in from top and bottom, adjustable in three axes after hanging.

03

Tempered liteA single sheet of fully tempered safety glass, permanently etched with its safety mark at the lower corner.

04

Applied grid mullionProfiles bonded to the face of one continuous lite — not separate panes joined by structure. The grid is a drawing, not a weakness.

05

Pull bar18 or 24 in bar in the frame finish, through-bolted. ADA lever sets available in place of the bar.

06

U-channel edge captureThe glass edge is captured on all four sides, so no exposed arris and no silicone bead doing structural work.

07

Floor clearanceNominal 3/8 in undercut for finish flooring; drop seal available where sound matters.

07 — WorkSelected installations

Installed, lived in, photographed as found.

Every image below is a WiseGlass NY installation across New York City, Long Island, the Hamptons and New Jersey. No renders.

08 — ProcessFour steps

Specified Monday. Hung the week after next.

01

Specify

Pick a model, a leaf size within its range, a glass and a frame finish. Six models, seven glasses, three finishes — the whole decision fits on one page.

About five minutes

02

Confirm

We return a dimensioned shop drawing and a written quote. You check it against your opening, sign it, and nothing moves until you do.

Within 24 hours

03

Fabricate & ship

Cut, temper, coat, assemble and crate in our Brooklyn shop. The door leaves with its hardware, hinges, a paper template and instructions.

Ten business days

04

Install

Our own crews across the New York metro area. Everywhere else, any competent finish carpenter can hang it — the hinges adjust in three axes after the fact.

Half a day per opening

09 — Who this is for

Builders. Designers. Homeowners.

Builders &
contractors

A lead time you can put on a schedule and defend at a client meeting.
No site-measure gate — order off the framing dimension.
Volume tiers across multi-door and multi-unit jobs.
Crated, labelled and delivered to the site or the yard.

Architects &
designers

Dimensioned shop drawings and CAD blocks for the set.
Physical glass and finish samples sent to the studio.
Spec language written to drop straight into your door schedule.
Custom fabrication behind it when the design demands it.

Homeowners

One door, one price, no design fee and no six-week wait.
We will tell you honestly whether your opening is standard.
Installed by our crews across the New York metro area.
The same doors we put in nine-figure homes in the Hamptons.

10 — Questions

The things people ask first.

What actually makes a door “prefab”?

It is built to a fixed, standard opening rather than to a site measurement. The engineering, the tooling and the glass sizes are already settled, so we fabricate from a known recipe instead of drawing a new door every time. Same shop, same extrusion, same glass as our custom work — we have simply already done the thinking.

Is the glass tempered?

Yes — every lite, without exception. Glass in a door has to be safety glazing, and fully tempered glass carries a permanent etched mark in a lower corner. If you ever see an interior glass door quoted without it, walk away.

My opening is an odd size. Now what?

Then it is a custom door, and that is the other half of the shop. WiseGlass NY has built more than thirteen hundred bespoke installations since 2018 — partitions, wine cellars, full-floor commercial work. Call us and we will quote it properly rather than force your opening into a stock size.

Do you install, or do I need my own carpenter?

Across the New York metro area — the five boroughs, Long Island, the Hamptons, northern New Jersey and Fairfield County — we install with our own crews. Beyond that, doors ship crated with hinges, hardware, a paper template and instructions, and any competent finish carpenter can hang one in about half a day.

Is there trade pricing?

Yes. Builders, general contractors, architects and interior designers get trade pricing, with additional tiers by volume. Send us your business details through the form and we will open an account and send the current price list.

Will a glass door do anything for sound?

Some, and more than people expect — but be realistic. A single tempered lite in a well-fitted frame takes the edge off conversation and most of the clatter. If you need a room to be genuinely quiet, ask about laminated glass and a drop seal; it is a meaningful upgrade and we will tell you when it is worth paying for.

11 — Start

Tell us the opening.

Phone(929) 220-2185

Emailwiseglassny@gmail.com

Shop248 Creamer St, Suite 7
Brooklyn, NY 11231

Instagram@prefab.studio

ServingNew York City · Long Island
The Hamptons · New Jersey
Connecticut · Philadelphia

Custom workwiseglassny.com

Bespoke glass, off the shelf.

We stopped waiting for the measurement.

A door should feel like it costs something.