LEGO Duplo 10909 Heart Box

Specifications
| Set number | 10909 |
|---|---|
| Release year | 2020 |
| Piece count | 80 |
| Minifigures | 0 |
| Theme | Duplo |
| Subtheme | Basic Set |
| Building instructions | Download the instructions on lego.com |
Where to buy set 10909
Also on: Amazon.co.uk · Amazon.ca
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LEGO set 10909 Heart Box, released in 2020 as part of the Duplo line, has 80 pieces. Its inventory breaks down into 39 different lots, across 12 colors.
Heart Box belongs to the open-ended side of Duplo, where large elements are used for simple handling and flexible building rather than for a fixed licensed scene.
The set can also be combined naturally with other Duplo elements because it is not tied to one specific model.
Heart Box is mainly suited to hands-on play and basic building rather than display. For a collection, it functions as a supplementary Duplo box, useful for expanding available parts without adding a defined story setting. Compared with more narrative Duplo sets, it remains deliberately broad and adaptable.
Inventory of set 10909
The inventory of set 10909 lists 80 pieces, spare parts excluded: 39 different lots (one shape in one color) for 20 part shapes.
Colors of set 10909
Main color: white, making up 18% of the parts, followed by medium azure (16%) and yellow (15%).
| Color | Parts | Share | |
|---|---|---|---|
| White | 14 | 18% | |
| Medium Azure | 13 | 16% | |
| Yellow | 12 | 15% | |
| Red | 9 | 11% | |
| Lime | 9 | 11% | |
| Coral | 6 | 7.5% | |
| Bright Light Yellow | 5 | 6.2% | |
| Light Aqua | 5 | 6.2% | |
| Orange | 2 | 2.5% | |
| Yellowish Green | 2 | 2.5% | |
| Other colors (2) | 3 | 3.8% |
Most common parts in set 10909
| Part | Color | Quantity |
|---|---|---|
| Duplo Brick 2 x 2 3437 | White | 8 |
| Duplo Brick 2 x 2 3437 | Red | 7 |
| Duplo Brick 2 x 2 3437 | Yellow | 7 |
| Duplo Brick 2 x 2 3437 | Lime | 6 |
| Duplo Brick 2 x 2 3437 | Coral | 4 |
| Duplo Brick 2 x 2 3437 | Bright Light Yellow | 4 |
| Duplo Brick 2 x 2 3437 | Medium Azure | 3 |
| Duplo Plate 2 x 4 40666 | Medium Azure | 3 |
| Duplo Brick 2 x 2 3437 | Light Aqua | 2 |
| Duplo Brick 2 x 2 3437 | Orange | 2 |
13 of the 20 part shapes in this set have their own page on Setopedia, with their colors, element numbers and the other sets that use them. See all LEGO parts
No part in set 10909 is exclusive: each one is found in at least one other set, which makes replacing a lost element easier.
Rebuilding set 10909 from another set
Share of the parts of set 10909 found in each of these similarly sized sets, counting shape, colour and quantity:
| Set | Found | Parts | Release year |
|---|---|---|---|
| 10958 Creative Birthday Party | 56% | 200 | 2021 |
| 10934 Creative Animals | 50% | 175 | 2020 |
| 10978 Creative Building Time | 48% | 120 | 2022 |
| 10913 Brick Box | 45% | 65 | 2020 |
| 45021 Our Town | 45% | 280 | 2017 |
No similarly sized set goes above 56%: the model relies on a little-shared assortment, most of which has to be gathered piece by piece.
Size of set 10909 within its line
With 80 pieces, set 10909 ranks #150 out of 522 Duplo sets in our database, which have an average of 69 parts. Among the 490 sets released in 2020, it ranks #348.
Frequently asked questions
How many pieces does LEGO set 10909 Heart Box have?
LEGO set 10909 Heart Box has 80 pieces. It was released in 2020 as part of the Duplo theme.
What year was LEGO set 10909 released?
Set 10909 Heart Box was released in 2020 and belongs to the Duplo theme.
Which minifigures are included in set 10909?
LEGO set 10909 Heart Box does not include any minifigures.
Where can I find the building instructions for set 10909?
The instructions for LEGO set 10909 Heart Box can be downloaded free as a PDF from the official lego.com website, under “Building Instructions”, by entering the number 10909.
What is the main color of LEGO set 10909?
White, with 14 out of 80 pieces, or 18%. Next come medium azure (16%) and yellow (15%).
How many different parts does set 10909 contain?
Set 10909 has 39 different lots (one shape in one color), covering 20 part shapes. Most common part: Duplo Brick 2 x 2 in white, with 8 copies.
Does LEGO set 10909 contain any exclusive parts?
No: every one of its parts is found in at least one other set.
Which similarly sized set contains the most parts from set 10909?
Set 10958 Creative Birthday Party, released in 2021: it supplies 56%, counting shapes, colors and quantities.
See also
Sets from the same theme
10914 Deluxe Brick Box2020 · 85 pieces
10913 Brick Box2020 · 65 pieces
10932 Wrecking Ball Demolition2020 · 56 pieces
10928 Bakery2020 · 46 pieces
10924 Lightning McQueen's Race Day2020 · 42 pieces
10933 Tower Crane & Construction2020 · 123 pieces
10915 Alphabet Truck2020 · 36 pieces
10922 Ariel's Undersea Castle2020 · 35 pieces
Sets from the same year
10919 Batcave2020 · 33 pieces
10921 Super Heroes Lab2020 · 30 pieces
10929 Modular Playhouse2020 · 133 pieces
10934 Creative Animals2020 · 175 pieces
71701 Kai's Fire Dragon2020 · 81 pieces
45815 PLAYMAKERS Discover Set2020 · 76 pieces
60247 Forest Fire2020 · 84 pieces
30411 Chocolate Box & Flower2020 · 75 pieces
