Door 1 x 4 x 5 with 4 Panes, Squared Base

3861b

Windows and Doors

Appears in 163 official sets

Catalog rarity

Common

Used in 163 official sets — a staple element in many builds. Available in 14 catalog colors.

Based on official set inventories in our catalog — not market price or production volume.

Best sets to source this part

Smallest official sets that include this element — useful when you only need one piece, not the whole theme.

Door 1 x 4 x 5 with 4 Panes, Squared Base (part 3861b) is a Windows and Doors used in 163 official LEGO sets. Scan or search to authenticate loose parts and check market value. Open the parent-set list to see which themes and years used this mold — essential when a common shape appears in a rare color or print.

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→ Appears in 163 official sets
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Market value

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