In most countries rebar comes in rods only as they are considered to be less expensive to transport, especially if we are talking about trucks. We do rods alright; however, there are new ways - which in some cases are 'well-forgotten old ways' as a Russian wisdom says. What you see on the photo is rebar in 50m and 100 m coils which are much more comfortable for any end user whether its a big government project or a private greenhouse as they are compact, lightweight and are very comfortable to carry: you can quite easily put two 100m coils on your shoulders and carry them to your car from a DYI store or to your workspot on a 1km² flooring at a major government construction site. Coils are tightly packed first on top of one another and then one inside another, just like the traditional Russian doll Matryoshka: coils with smaller diameter go inside bigger diameters. Custom-sized Matryoshkas are also used to rationalize free space in 20ft and 40ft containers as rebar in rods leave lots of free space. The same goes for storage: with Matryoshkas you will need 3m2 storage (1.35mX1.35m for Matryoshka itself and remaining space for access) to house an equivalent of a railroad container with steel rods, hence a. smaller storage purchase/rental costs and smaller bills plus there's b.smaller loading/unloading costs as coils require much less manpower and machinery like cranes to work with than steel and even less manpower than regular GFRP rods.