Make a simple stackable sawhorse that you can make in 5 minutes. You can add some bracing for more strength.
The first thing to do is to cut the parts. These boards are 28×120 mm (approximately 1×4 inches.) Cut four pieces to 850 mm (34″)
Now, cut another two boards and a 2×4 to 600 mm (24″)
Almost there! Use nails or screws to put it all together as shown in the illustration below.
Step 4 (optional)
If you want to give it more strength, you can add some bracing.