Storage solution for large/medium LEGO collection that allows for easy access, building

[Donald]

Hi,

I want to sort my growing LEGO collection of ca. 45'000 bricks by shape (design), colors can/will be mixed. It is overall 1'200 different shapes. Very small lots of less than 20 bricks per shape will likely be sorted in groups. I do not want to sort by set. I've estimated the volume of my most frequent bricks. With that estimation, I have two dozen bricks over two liters volume, a couple dozen between 1-2 liter, about one hundred between 0.25-1 liter and a big number of smaller lots. 

I've searched online and the Brick Architect's Guide is quite nice, but with exception of the Stanley removable organizers, none of the products are easily sourced in Germany/Switzerland. The ones from Really Useful Products look great, but will only ship to UK. I use the Stanley organizers now for smaller bricks/lots, but that isn't going to scale. The larger lots are not fitting in as it is now and my collection is still growing. My new sets are usually built, then disassembled after a couple of weeks and then used for MOCs. 

I have a free wall of 2.50m wide and 2.30m high and would like to have a shelf there. I will likely build up a spare IKEA Kallax I still have lying around and put my stuff there. Unfortunately I haven't found anything online at IKEA that would suit my needs for further sorting. The SAMLA boxes are too big and have no subdividers. I've also looked at wall mounted storage that planned for DIY, but haven't found anything I really like (e.g. boxes are not transparent, are fixed to the wall, are open and will collect dust). A local store (Coop Bau & Hobby) had decent looking organizers from Sundis (Pure Box A5, Pure Box A6 - the last one optional with divider), but they weren't easily stackable and quite expensive. Also I cannot find them elsewhere and am afraid I cannot buy more in 1-2 years time. 

What are your ideas/tips to sort a collection of over 50'000 bricks? How do you make it not so static, so that growing collections can accomodated? What boxes do you use? Preferably with a link to Amazon Deutschland or IKEA or any other widely available product group. 

Edited June 28, 2018 by Donald
Added a link to related post

[MAB]

IKEA Trofast are easily expandable and likely to be around for years. They look a bit childish though (but then they are kids storage). Drawers slide out easily for use. They aren't transparent but that is not a bad thing for lego parts anyway and you can use labels. They are a bit big, but you can use smaller boxes within a drawer.

[Donald]

4 hours ago, MAB said:

IKEA Trofast are easily expandable and likely to be around for years. They look a bit childish though (but then they are kids storage). Drawers slide out easily for use. They aren't transparent but that is not a bad thing for lego parts anyway and you can use labels. They are a bit big, but you can use smaller boxes within a drawer.

I've had a look a IKEA Trofast and I didn't really find good boxes that fit into the rounded drawers. The drawers themselves are far too big.