Makedo SCRU 100 Pack – Cardboard Building Kit Screws – 100 Construction Screws and Mini-Tool Expansion Pack – Cardboard Screws for Any Cardboard Fort Building Kit for Kids, Age 4+

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Self-tapping and drilling screws are available in steel, carbon steel, and stainless steel. Gauge sizes range from 3.5 to 6.3mm, and lengths range from 12 to 120mm. Okay, that's all I've got. Speech over. My fingers are numb from typing. Maybe I'll record that and add it as a video so your eyes don't go numb from reading, too. I just made a few of these boxes/trays -- at these dimensions they end up being 6 x 3 x 1 1/4. Works pretty well, although they're nowhere near as neat as the ones in the photos where the OP used inside-corner tape... >;-) This method is good if your cardboard is flimsy, thin, and bends where you don't want it to. Simply take two sheets of cardboard, and glue the faces together so the "grain" or direction of corrugation in the first piece is at a 90 degree angle (is perpendicular) to the "grain" in the second piece, creating an internally crosshatched structure.

To make a flange tab joint, you simply make several small cuts around the base of a tube and then fold the pieces so that it creates flange. Best for small parts or areas that will need painting, but won't work for edge joints. I don't use this glue much, but I keep it just in case. This is also a great opportunity to discuss how the "grain" of cardboard is similar to that of wood - the way it is constructed makes it easier to "cut with the grain" along the corrugated channels, rather than "across the grain" perpendicular to the corrugation. I think this is neat because cardboard is, after all, wood!When choosing the thread, consider the density of the wood. It’s best to use fine threads for hardwoods and coarse threads for softwoods.

It can be helpful to establish a theme for the class to build creations within to help those students who might struggle to come up with an idea of what to build. General ideas like Jurassic Park in cardboard, Star Wars, Hogwarts, etc. allow for free iteration within the theme. Give students at least 30 minutes of building time, then regroup to share their designs, ideas, and challenges. Have students disassemble their creations at the end of the class period to reuse the materials, or better yet create a display to share with the rest of the school! We are super excited to bring all sorts of fun project ideas in the very near future but first, we need to cover the basics of working with cardboard if you are new to using this material for building things. Reliable Fastening: With their specially designed threads, chipboard screws offer reliable and long-lasting fastening for soft timbers, MDF, and chipboard. The screws bite into the material, creating a tight and secure grip that minimises the risk of loosening over time. Different paints work differently, and the real differences you want to watch out for are between Matte and Gloss paints. I usually mix the two so that I get a semi-gloss, and this is fine applied directly to the cardboard (for a more rustic or weathered feel/look) or with a base coat (for a newer look).

While cardboard can’t replace wood for certain things (like outdoor furniture or kitchen cabinets for example) – it does bring a lot of new possibilities for smaller projects, especially because cardboard is so easy to get for free. As always, these are the projects of Dangerously Explosive, his lifelong mission, "to boldly build what you want to build, and more!" Once you have those tabs cut and folded over to form the flange, it’s as simple as applying some glue. This is a great way to add additional elements to whatever you are building – especially when making cardboard sculptures and models.