← The LEGO Parts Guide

Ladder Two Piece, Bottom Section (Part 420)

1969-1979RETIRED

Custom LEGO part image © 2025 Tom Alphin / Brick Architect.

External Links

LEGO parts are described differently on other websites and may use different part numbers.

Bricklink:
420 Part not found on BrickLink.
Rebrickable:
420 Ladder Two Piece, Bottom Section
Brickset:
420 Part not found on Brickset.
LDraw:
420 Ladder 2 x 12 Bottom Section
 ALL YEARS
OVERALL RANK
2994
# PIECES
31(RANK: 2899)
# SETS
22(RANK: 2556)
# COLORS
2(RANK: 4154)

Ranking based on buying one copy of every LEGO set, counting the number of sets containing each part, then sorting by part and color.

Overall Rank is a weighted score combining the number of parts, sets, and colors produced.

Printable LEGO Brick Label

Requires a compatible Brother Label Printer — learn more at brickarchitect.com/labels.

Ladder Two Piece,
Bottom Section
420
.LBX

Preliminary Label: Part name may be inconsistent since this part has not been added to LEGO Parts Guide yet. (You may want to edit part name before printing.)

This part has not been added to The LEGO Parts Guide yet, so you will not find it in the galleries sorted by category.

This page was generated using data from Rebrickable, BrickLink, Brickset, and LDraw.

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The LEGO Parts Guide is a work in progress

This is a handcrafted experience to help you browse LEGO parts in a simpler way. If you have ideas to make it better or encounter any issues, please send me an email at tom@tomalphin.com — Thanks!

Check out the About the LEGO Parts Guide page to learn more about why I created this guide. It also includes a detailed version history with images of early prototypes of this guide.


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This guide uses external data from Rebrickable, BrickLink, Brickset, and LDraw.