Not sure what ylou are asking? Do you want a textured wallpaper of grasscloth? Grasscloth will always show the seams it is the nature of the material and for people who love it is part of the beauty. Waht is the reason for the texture? A bit more info will get you more help. Post here in comments DO NOT start another post .I do not like textured walls but sometimes it is just what is needed .

I have a grasscloth sample and I love the way it looks and feels, I just don't love the paneling look (the visible seams). I don't know much about wallpaper, so I'm wondering if anyone has bypassed this by using an alternative material?

Grasscloth is handmade. There will always be variations.

If you don't want variations, then select vinyl, faux grasscloth. It's machine-made

Oh cool! I will look into vinyl grasscloth. Thank you for the recommendation.

a faux paint treatment.

Some wallpapers come in wider widths, so you get less seams. Some wallpapers are fabric based and can come in 54" widths like bolts of fabric. Look at the specs for details.