Door Gap & Clearance Checker
Measure the four reveal gaps around your closed door — hinge side, latch side, top and bottom — in mm. The tool flags each as tight, OK or wide, then reads the pattern to name the likely fault and the fix.
Your reveal gaps
Close the door and slide a feeler / steel rule into each gap. Enter the readings in millimetres.
target 2–5 mm
target 2–5 mm
target 2–5 mm
target 6–12 mm
Targets: sides and top ≈ 3 mm (band 2–5 mm); bottom 6–12 mm (or down to the sweep / sill). Even, consistent reveals mean a well-hung door. Big or uneven gaps point to binding, sag, draught or an ill-fitting leaf.
Gaps out of tolerance
0 / 4
All four reveals are within band.
Hinge side
OK3 mm
target 3 mm · spot on
Latch side
OK3 mm
target 3 mm · spot on
Top
OK3 mm
target 3 mm · spot on
Bottom
OK9 mm
target 9 mm · spot on
Likely diagnosis
Reveals are within tolerance
All four gaps sit inside the target bands — ~3 mm on the sides and top and 6–12 mm at the bottom. The door should swing and latch cleanly with a good seal.
Fix: No action needed. If you still feel a draught at the bottom, a slim brush seal makes a tight door even more efficient.
Measured vs target gap, per side
Each measured bar is coloured by its verdict — terracotta = tight, green = OK, blue = wide. The paler bar is the ideal target for that side.
Not sure which fix to try first?
DesignAI reads your gap pattern, confirms the likely fault and gives you the safest DIY order of steps — and tells you when it's a carpenter's job.
Assumptions & notes
- Target reveals follow common Indian fitting practice: ~3 mm on the hinge side, latch side and top (band 2–5 mm), and 6–12 mm at the bottom (or down to a sweep / sill). Fire and weather doors may specify their own gaps — follow the door's rating sheet.
- The diagnosis reads the pattern of your four gaps; a real door can have more than one fault at once. Re-measure after each fix and recheck here.
- This is a DIY aid and is indicative only — confirm on site, and a carpenter may be needed where the leaf is warped or rotten, the frame has moved, the glass is involved, or it is an automatic / electric door (isolate the power first).
- Where a fix involves buying parts (seals, sweeps, hinges) note that 18% GSTapplies to goods in India; labour is charged separately by the carpenter.
Related Guides — Deep-dive reading
Door Installation Guide India: Fix the Frame, Hang the Leaf, Fit the Lock
A step-by-step walkthrough of how a door is actually installed in an Indian home — frame to lock — plus DIY-versus-carpenter, tools, mistakes and fitting labour costs.
Home Doors & EntrancesUneven Door Gaps Fix: Even Out Tapered Reveals India 2026
Read the gap pattern around your door like a map, then close it to a clean even reveal with simple hinge and strike fixes.
Home Doors & EntrancesBurglar-Resistant Doors India 2026: RC1-RC6 Security Guide
How EN 1627 resistance classes RC1 to RC6 work, what each grade actually resists, and how to spec a tested anti-burglary door set for Indian homes and shops.
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