4 ft. x 100 ft. Landscape Fabric

My experience with this product allowed me to cut it easily with a sharp quality utility cutter. In my case I only needed to cut across the entire width to make adjustments to length of my pieces. You could most likely cut your roll into the desired width strips as you go OR possibly cut the desired width on the roll before you separate it from the 100 foot roll.

yes, you can put sand on top of it.

For a while. Some of those suckers are persistent little things and they force their way through. I'd say it reduces the unwanted growth by about 85%. Eventually Mother Nature always wins. Always.

I generally overlap by 6" or so and staple it in the middle of the overlap. And I think you already know the answer on river rock - blown-in dust carried on the wind will eventually create a fertile soil for weeds. So every 5 to 10 years I've had to make a pass through screening my rock to remove the built-up soil. I fabricated a wooden box with a 1/4" square mesh metal screen on the bottom to fit over my garden wheelbarrow to shovel the rocks into and let the accumulated soil fall through. It's tedious but you don't have to do it every year, only something like 5 to 10 or more years depending on how windy your area is. The finer the rock the less likely the blown-in soil will create a fertile opportunity for weeds - but eventually it will. But the finer rock is harder to screen since it will fall through the mesh of the screen. As you can see in the photo I have a mix of pea gravel for walkways (reinforced by a fine gray sand so you can run a wheelbarrow over it) along with mulch and rocks for ground cover. I also have some walkways with 16" square pavers and 1 to 2" river rock as accent filler. I think I prefer the 1 to 2" river rock as it is the easiest to cycle through the screening process.

when will I be able to get a McRib sandwich year round ? Just my sarcastic way of saying both your question & mine are not in the appropriate place.

I think it is. I've used both this and the grey paper type. The grey paper is less permeable and water will travel on top of it whereas this black stuff is more like a loose weave cloth that lets water soak through.

You can remove the weed before placing it, but as soon as you will staple it to the ground so no sun coming through it will dyi.

woven.

Do not use this product. Weeds grow right through it. It serves no purpose. Just read the review of others who fell into this trap. I wished I had known before I used this product. Was a waste of my money and time.

Heavy plastic that provides complete coverage and blocking of sun, great under pine straw.