I’ve trashed so many of the “garden trailers” like in your photo. I know they are for looks, but I use the stuff on my farm. Since you put in firewood, I would think you’ll far exceed the weight of those trailers.
My solution has been, #1 – buy a small utility trailer with a real axle and wheels rated for more than your expected use. You’ll save money on the long run. My fgavorite for around the farm has been my 5 x 10. Its easy to pull with the ATV. Plus I can still use it on the road behind my truck. For concerns on size, plenty of 4 x 8’s with good load capacity
#2 – buy a cheap garden trailer and tear it apart. Replace the stamped tin tongue with tube steel. Reinforce all the corners with angle iron. Weld in additional supports with angle iron and paint it.
Attachments:
20170818_110553.jpg
DSCN1279.jpg