/tools/lego-frame-calculator

Frame Parts Calculator.

Generates a parts list for a wall-mounted frame surrounding an arbitrary grid of LEGO 16×16 Technic base plates (part 6302092), modelled on the construction used in set 31212 (Milky Way Galaxy).
Width (plates)
5
Height (plates)
3
Base plates
15
Total parts
229
Size
64.0×38.4cm
Layout preview
80 studs48 studs

Bill of materials

16 unique parts
System bricks, plates & tiles
Plate 16 x 16 with Pin Holes
Design 65803·Element 6302092
15×
Brick 1 x 16
Design 2465·Element 246526
28×
Brick 1 x 8
Design 3008·Element 300826
24×
Brick 1 x 4
Design 3010·Element 301026
12×
Brick 1 x 1
Design 3005·Element 300526
16×
Brick Corner 1 x 2 x 2
Design 2357·Element 235726
4×
Brick 1 x 2 with Cross Hole
Design 31493·Element 6178922
32×
Plate 2 x 16
Design 4282·Element 428226
12×
Plate 2 x 10
Design 3832·Element 383226
4×
Corner Plate 2 x 4 x 4
Design 2639·Element 6483102
4×
Corner Plate 1 x 3 x 3
Design 77844·Element 6439175
4×
Tile 1 x 8
Design 4162·Element 416226
28×
Tile 1 x 2
Design 3069·Element 306926
8×
Technic beams
Technic Panel 3 x 5 with Pin Hole
Design 67139·Element 6302094
2×
Technic connectors
Technic Axle 2L Notched
Design 32062·Element 4109810
32×
Technic Pin with Friction Ridges
Design 61332·Element 6279875
4×

Methodology. Formulas derived from the Brickset inventory of set 31212-1 (5×3 plates) by treating each part's quantity as a linear function of the perimeter (W+H) plus a corner constant. Validated against the source inventory; extrapolation to very small (W+H < 4) or very large frames may need manual tuning.

Element IDs vs design IDs. Element IDs (6–7 digit, e.g. 246526) are the specific part-plus-colour SKU LEGO uses for ordering replacements. Design IDs (e.g. 2465) identify the mould shape independent of colour and are what you search on Bricklink and Rebrickable.