COST GUIDE

Commercial glazing tenant improvement cost per sq ft

A per-square-foot number is the first thing everyone asks for, and for glass it is especially misleading. Here is what actually drives glazing and build-out cost, why the range is so wide, and how to get a number you can budget against.
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WHY THE RANGE IS WIDE

Floor area is not what drives glass cost

Glazing cost follows the amount and type of glass, not the size of the suite. Two offices of the same area can differ enormously if one has a few glass-front offices and the other has a full glass conference suite and a new storefront.

The type of glass and system matters as much as the quantity. Framed storefront, frameless interior glass, demountable partitions, laminated security glass and automatic entrances each cost very differently.

For a full build-out, the glass is one part of a larger number that also depends on the shell condition, the level of finish and the mechanical, electrical and plumbing work. That is why any per-square-foot figure needs a use, a condition and a scope attached.

The biggest cost drivers

WHAT GOES INTO THE NUMBER

The cost components

Each of these is priced separately in a real estimate.

Storefront

Framing, insulated glass and entrance, priced by the size of the opening and the system specified.

Interior glass

Glass walls and doors, priced by length, height and system type rather than floor area.

Doors and hardware

Each door carries its own hardware set, and automatic operators or access control add to it.

Specialty glass

Laminated, fire-rated, privacy or security glazing where the use or code requires it.

Build-out trades

Framing, drywall, ceilings, finishes and MEP coordination when the full interior is in scope.

Soft costs

Design, permits, landlord review, access equipment and after-hours premiums.

BUDGETING STEP BY STEP

How to budget before you have drawings

A better approach than multiplying area by a rate.
01

Count the glass

Estimate how many glass offices, conference rooms and doors you want, and whether the storefront is new.
02

Pick a system level

Framed, frameless and demountable systems sit at very different price points.
03

Check the shell

A second-generation suite with reusable walls costs far less to build out than a cold dark shell.
04

Add the rest of the build-out

If the full interior is in scope, the finish level and MEP work shape the total as much as the glass.
USING A RANGE HONESTLY

What a per-square-foot figure is good for

A per-square-foot rate has one legitimate use: a first-pass feasibility check, before there is a layout, to decide whether a space is worth pursuing. Used that way it is helpful.

It stops being helpful when it is used to set a budget you will be held to. The glass count and system choice move the number far more than area, and the difference surfaces later as a change order.

We will give you a planning range on a call if you need one — and tell you what it assumes — then replace it with a line-item estimate as soon as there is a layout.

Get a real number instead

COMMON QUESTIONS

Glazing cost questions

The questions we hear most when tenants and designers are building an early budget.

We can give a planning range once we know the glass scope and the shell condition, along with what it assumes.

Frameless systems use thicker glass, precise fabrication and specialized hardware, and they leave less tolerance for uneven floors and ceilings.

Not always. Existing storefronts can often be reused or modified, which can save a significant amount.

We list them separately so you can see them, rather than hiding them in the total.

Much better than a per-square-foot figure. We mark allowances for anything still undefined.

Replace the estimate with a real number

Send a layout with the glass marked. We turn most line-item estimates around in three business days.