Door Installation Checklist: Inspect & Sign Off (India 2026)

Most door problems are invisible on the day the carpenter packs up and obvious six months later: the leaf that rubs after the monsoon, the frame that bows and won't latch, the bathroom frame that swells because nobody packed a DPC under it. A simple door installation checklist, run with the fitter before you sign off and release payment, catches almost all of these while they are still cheap to fix. This guide gives you a homeowner's before-during-after inspection — what to look at, the numbers that matter, and exactly what to reject — so a door is fitted right the first time rather than re-hung after you've moved in. You don't need to be a carpenter; you need to know what "good" looks like and where to put your eye.

Door installation checklist: the three stages

A door fitting has three moments where a quick check saves a callback: before the frame goes in (is the opening ready and correct?), during fitting (is the frame plumb, square and properly fixed before it's grouted in?), and after the leaf and hardware are on (does it swing, latch, seal and look right?). Once the gap is grouted and the architrave is on, a crooked frame is buried — so the during stage is the one most worth your attention. Run each list below with the fitter present; ask them to demonstrate, not just assure you.

Before fitting: the opening and materials

Before the frame (chowkhat) is lifted in, walk the opening with the fitter. The structural opening should be the frame's outer size plus roughly 10-12mm of packing gap on each side — enough to wedge and pack the frame true, not a yawning void. Check that an RCC lintel or header spans the opening with bearing on each side; a doorway without a proper lintel will crack the wall above. Look for a DPC (damp-proof course) or stone/RCC base block under where the frame foot will sit, especially in bathrooms and external walls — untreated timber standing on a wet floor is the single commonest cause of a rotted frame foot in Indian homes.

Confirm the frame material suits the location: seasoned hardwood or teak for dry internal and main doors; WPC, PVC, aluminium or RCC for bathrooms and wet areas (never untreated timber); steel for security and commercial. Ask whether the timber frame foot has been anti-termite treated at ground contact. Use the door frame material selector if you're unsure what belongs where, and see door opening prep and door lintel requirements for the structural side.

Before-fitting checks

During fitting: frame plumb, square and fixed

This is the stage that matters most, because a frame that is out of true here will be grouted in and hidden within the hour. Ask the fitter to hold a spirit level against each jamb — it should read plumb within 1-2mm over the full height. Then check the frame is square: the two diagonals should be equal (within 2-3mm), and the head should be level. A frame that isn't square produces a tapering gap that no amount of planing the leaf can cure — the leaf will either rub or self-swing.

Next, the fixing. Timber frames are anchored with M.S. holdfasts (hold-fast clamps) — about three per jamb for a 2.1m frame, embedded in the masonry with cement concrete, or with screws and fasteners into solid plugs. The critical, often-skipped step is packing behind the hinge and lock points with shims so the frame can't bow inward when screws are tightened or the leaf is hung. Steel frames are built in and grouted with cement mortar; the cavity must be fully back-filled, not left hollow. Don't let anyone grout or foam the gap until you've seen the plumb, square and packing for yourself.

During-fitting checks

After fitting: gaps, swing, latch and seal

With the leaf hung and the hardware on, this is the part you can check yourself with your eyes and hands. Start with the gaps. The margin around the leaf — the reveal — should be an even ~3mm at the head and both vertical edges, reading as one parallel line all the way round. A gap that pinches in one corner and yawns in another is the tell-tale of a frame that's out of plumb or square. Underneath, the undercut should clear the finished floor — typically 6-12mm, more for bathrooms (ventilation) and carpet, less where a threshold or seal is fitted. Confirm the floor finish is allowed for; a leaf set to bare screed will scrape the new tiles. See door clearances and tolerances for the full gap logic.

Now the movement. Open the leaf to several positions and let go — a well-hung door stays where you leave it and does not creep open or swing shut on its own (that's a plumb fault). It should swing through its full arc without rubbing the frame or floor. Throw the latch: it should enter the strike plate cleanly with light hand pressure, and the lock should turn without forcing — the strike must align with the bolt. Check the hinges (usually three) are flush-mortised, screwed fully home and not packed with matchsticks. Finally, the seal and finish: the frame-wall junction should be neatly caulked (acrylic inside, silicone in wet/external areas), the rebate seal or gasket present where specified, the architrave mitred tight with no gaps, and the paint/polish even with edges and the top of the leaf sealed (an unsealed top edge drinks moisture). For diagnosing faults you find, fix sagging door is useful, and door installation mistakes lists the errors this checklist is designed to catch.

After-fitting checks

Accessibility and safety sign-off

Two non-negotiables before you accept a door. First, free egress: any door on an escape route must open easily in the direction of escape with a single action, never needing a key from the inside — a life-safety rule under NBC 2016. Second, accessible thresholds: where step-free access matters (entrances, accessible bathrooms), the RPwD Act 2016 and the Harmonised Guidelines 2021 ask for a threshold ≤12-13mm, bevelled if over about 6mm, and preferably flush — with an external drainage channel and slope so a flush threshold doesn't let water in. If a high, square step has been built where level access was intended, that's a reject. See accessible doors for the detail.

Sign-off and payment

Don't release the final payment until every "after" box passes and you've operated the door yourself a dozen times. Ask the fitter to leave the frame demonstrably plumb and square, the gaps even, the swing free, the latch clean, the seals complete and the finish whole. For a quick numeric check on your own door, the door clearance checker confirms the reveal and undercut for your floor and door type. For the full fitting method behind these checks, see this phase's pillar door frames, the step-by-step door fitting guide, and the cluster-wide complete door guide.

Frequently asked questions

What should I check before signing off a newly fitted door?

Run the three-stage list: the opening (size, lintel, DPC, right frame material) before fitting; the frame (plumb within 1-2mm, square diagonals, holdfasts, packing behind hinges/lock) during fitting; and the finished door (even 3mm gaps, 6-12mm undercut, free swing, clean latch, complete sealing and finish) after. Only release payment once the after-stage all passes.

How do I know if the door frame is fitted properly?

Hold a spirit level to each jamb — it should be plumb within 1-2mm over the height — and check the diagonals are equal so the frame is square. A correctly fixed timber frame has about three holdfasts per jamb and is packed solid behind the hinge and lock points so it can't bow. An even reveal around the leaf is the visible proof it's true.

What gap should a fitted door have?

An even ~3mm reveal at the head and both vertical edges, reading as one parallel line, and a bottom undercut of 6-12mm over the finished floor (more for bathrooms and carpet, less where a threshold or seal is fitted). Tapering or uneven gaps mean the frame is out of plumb or square — reject and have it corrected.

When should I reject a door installation?

Reject if the frame is out of plumb or square, the gaps taper, the leaf self-swings or rubs, the latch needs slamming or lifting, the hinges are loose or packed with shims, the frame-wall junction is unsealed, the top edge of the leaf is bare, or there's no DPC and the timber foot sits on a wet floor. These get worse, not better, once you've moved in.

Do I need a carpenter to inspect a door, or can I do it myself?

Most checks are eye-and-hand — operate the door, look at the gaps, feel the latch, check the seals — and any homeowner can do them. A skilled carpenter or site engineer is worth involving for the plumb/square measurement and the buried fixing checks during fitting, since those are what determine whether the door behaves for years.

What are the safety rules I must verify on a door?

Two: an escape-route door must allow free egress — open easily in one action without a key from inside (NBC 2016) — and where step-free access is required the threshold should be ≤12-13mm, bevelled or flush, with external drainage (RPwD Act 2016 and Harmonised Guidelines). A high square step where level access was intended is a reject.