How Much Does a Door Cost? A Procurement Checklist for Tempered Glass and French Doors

The first question to ask: what are you actually comparing?

Ask five suppliers how much does a door cost and you'll get five answers. I'm a procurement manager at a mid-sized commercial construction distributor, and for the past six years I've tracked every door and glazing quote in our cost system. That's a lot of invoices. The differences in price rarely come from the door itself. They come from what's included in the quote.

This checklist is for anyone buying French doors, tempered glass units, or door-adjacent construction specialties. It works for replacement doors and new construction. It also works for Division 10 items like kick plates, wall protection, and expansion joints that sit near the opening. There are six steps. Follow them in order and you'll avoid the mistake that cost me a $600 redo in my first year.

Step 1: Define the exact door assembly

If the quote doesn't say 'prehung with frame, hardware, and glazing,' you're not comparing the same product. A French door can be sold as a slab, a prehung unit, or a pair in a multi-lite configuration. Tempered glass can mean a fixed lite, an operable lite, or a custom safety glazing package. The price difference among those can be $1,100 on the same door.

Write down the exact scope before you ask for pricing. Include rough opening size, handing, fire rating if the opening requires it, and glass spec. You can't expect a vendor to read your mind. If you don't give exact dimensions, you'll get a budget number that disappears later.

I once had two quotes on a pair of French doors that were $1,100 apart. The lower one was slab-only. The higher one included the prehung frame, tempered glass, sweeps, and hinges. The lower quote wasn't cheaper. It was incomplete.

Step 2: Get three quotes from different channels

My procurement policy requires at least three quotes. It used to be two, until one vendor made a mistake that cost me a month. Now it's three, and I compare them on a simple TCO spreadsheet.

Use local glazing shops, online door suppliers, and at least one specialty distributor. AllSource Construction Specialties is a distributor I've used for Division 10 products; their quoting process was straightforward, but I still run every line item through the same checklist. The brand name doesn't matter if the quote doesn't define scope.

Here's something vendors won't tell you: the first quote is almost never the final price for an ongoing relationship. There's usually room to negotiate once you've proven you're a reliable customer. I'm not saying lowball every quote. I'm saying ask, 'Is this your best number before I compare it to two other bidders?' The answer is sometimes a discount.

Step 3: Verify the glass spec before you price it

Tempered glass is not a commodity. It's a safety glazing product, and it has to meet recognized safety standards. In the US, safety glazing in hazardous locations is governed by CPSC 16 CFR Part 1201. If someone quotes tempered glass without referencing that standard, ask for a cut sheet.

Check that the glass is permanently marked with the manufacturer's name and the standard. This isn't paperwork for fun. Building inspectors look for the mark on jobsites. If the glass is fabricated before code review catches it, the redo comes out of your budget.

The Construction Specialties official website (construction-specialties.com) has product data sheets for door-adjacent Division 10 products like Acrovyn wall protection, corner guards, kick plates, and expansion joints. If you're coordinating a door installation with those items, download the manufacturer specs early. Don't rely on a distributor's paraphrase.

Step 4: Price the installed system, not the door

In January 2025, I reviewed 14 door-related quotes in our tracking system. Interior hollow-core prehung units were around $120 to $250, with installation taking the total closer to $500. Steel entry doors were $1,800 to $3,500 installed. Tempered glass French door units, installed with framing and hardware, ran $2,200 to $4,500. Those are real ranges from my dataset, not a national average. Your market will be different.

Why does this matter? Because 'how much does a door cost' is the wrong question. The right question is: how much does it cost to get the door, get it installed, and get it inspected?

Add line items for demolition, disposal, rough opening repair, extension jambs, shimming, insulation, and sealant. Add freight if the door is shipped on a pallet. Add tax. If a quote only covers the door and the hardware, that's not a total cost. It's a starting point.

The total cost of ownership matters more than the first invoice. A $600 door that's wrong because the glass isn't tempered is a $1,200 lesson.

Step 5: Treat lead time as a cost

Lead time is a cost, even if it doesn't appear on the invoice. Standard turnaround on a factory order of tempered glass French doors can be six to ten weeks on a full lite, sometimes more if it's a custom size. Stock units move faster. Find out which one you're buying.

What most people don't realize is that 'standard turnaround' usually includes buffer time that vendors use to manage their production queue. It's not necessarily how long your order takes. That means a quoted lead time is an estimate, not a promise. Ask for a committed ship date in writing and ask what happens if they miss it.

In March 2024, I paid $400 extra for rush delivery on a tempered glass door. The alternative was missing a $15,000 event. That $400 wasn't a luxury. It bought certainty. Not every order needs rush service, but if a delay means a penalty clause, empty storefront, or shutdown, the rush fee is cheap.

I didn't always think this way. I used to pick the lowest lead-time quote and assume 'probably on time' was fine. It cost me once. After getting burned twice by 'probably on time' promises, I changed our procurement policy. Now, when time is tied to a hard deadline, I choose the vendor with a confirmed date, even if that vendor costs more. Uncertain cheap is more expensive than certain expensive.

Step 6: Compare long-term cost, not just sticker price

No door is zero maintenance. A tempered glass French door with a wood frame needs refinishing. An aluminum frame needs cleaning and pressure washing. A steel door needs the same treatment as any painted exterior. Ask what the finish warranty covers and what it excludes.

Hardware grade matters too. I look at cycles. Commercial door hardware is rated in cycles, and using residential-grade hardware on a commercial opening means replacing it sooner. The cheap hinges are only cheap if they survive the first year.

If someone markets a door as 'recyclable' or 'low-VOC,' ask for substantiation. Per FTC guidelines (ftc.gov), environmental claims have to be backed by evidence. A vendor saying 'it's green' isn't enough.

Common mistakes that show up in real quotes

In my first year, I made the classic specification error: assumed 'standard' meant the same thing to every vendor. It doesn't. One vendor's standard French door includes tempered glass, flush bolts, and hinges. Another vendor's standard is just the slab. Compare cut sheets, not marketing descriptions.

The recurring ones are easier to name:

• Accepting a quote without freight or delivery terms.
• Ignoring whether the quote includes installation labor.
• Assuming tempered glass is automatic on French doors. It isn't always.
• Waiting until every decision is final before ordering. Lead time is not a suggestion.

That last one has cost companies the most. A delay on one tempered glass French door can push a whole project. In procurement, the expensive option is often the one you order too late, not the one you paid a premium for.

Use the checklist. Six steps, one spreadsheet, and a set of questions for every vendor. The goal isn't to find the cheapest door. The goal is to find a door that arrives on time, meets code, and doesn't create a second invoice.