We have been so hungry for “adult” Legos with which we could actually make some home projects that we’ve checked out all sorts of possibilities, including giant plastic storage boxes in the shape of Legos, with “Lego” embossed loudly on the top. NOT.
The closest we’ve come is TogetherFarms modular blocks made from recycled plastic and food-safe. They are being marketing for use for making planters and raised beds.

They LOOK Lego-ish, and you can get them in colors, although we like the charcoal gray. Each brick is 10-inch-x-2-inch-x-2-inch.

They come with holes that allow you to screw them together to make taller structures.
The curious thing is we haven’t found ANY images of alt-uses for the blocks, except as raised beds and planters… not an odd table or chair or playhouse…
Wonder why. Anyone know?
I think people tend to improvise their own “grown-up legos” all the time, but not quite in recognizably-lego form 🙂 I made my own version earlier this year, in the form of 25 simple plywood boxes. We needed some shelving, but knew we weren’t going to be staying in our current apartment long-term, so didn’t want to invest in buying or building a bookcase that may or may not work in our next space. I knew I wanted to make something inherently modular and reusable, that I could build and bring into our space and use without knowing up front exactly how it would be used, and where the “leftover bits” could have uses too. We ended up using 20 of the boxes stacked irregularly as a bookcase, 3 stacked in the bathroom for storage, one as a nightstand, and another on casters as a moveable coffee table for our small living room area, which doubles as storage for our “coffee table books”.
I think people tend to improvise their own “grown-up legos” all the time, but not quite in recognizably-lego form 🙂 I made my own version earlier this year, in the form of 25 simple plywood boxes. We needed some shelving, but knew we weren’t going to be staying in our current apartment long-term, so didn’t want to invest in buying or building a bookcase that may or may not work in our next space. I knew I wanted to make something inherently modular and reusable, that I could build and bring into our space and use without knowing up front exactly how it would be used, and where the “leftover bits” could have uses too. We ended up using 20 of the boxes stacked irregularly as a bookcase, 3 stacked in the bathroom for storage, one as a nightstand, and another on casters as a moveable coffee table for our small living room area, which doubles as storage for our “coffee table books”.
At our next place, we may use them as outdoor side tables, as improvised steps, a media center, a modular work table, mounted on the wall as shelves, upholster a few for footstools…so many possibilities! 🙂
(Whoops, sorry for the double-post! Clicked “post” before I was done…d’oh)
I love your iteration of Legos in the form of modular plywood (one of my favorite materials) boxes. Many people are so transient these days, it makes sense to have furniture that can morph as needed. If you have images, please send.
Check out these Giant plastic LEGO-like blocks from EverBlock systems. http://www.everblocksystems.com These are really large (12″ x 6″ x 6″) blocks that can be used to build all types of things.