Not pre-cut, but inexpensive: we get big rolls of grid paper and cut along the lines. https://www.amazon.com/Pacon-Grid-Roll-Inch-Rule/dp/B000XP23O8/ref=mp_s_a_1_3?crid=IQEKSV0DDMWO&keywords=one+inch+grid+paper+roll&qid=1656789490&sprefix=one+inch+gri%2Caps%2C103&sr=8-3
Then you may be able to find something like this:
https://www.amazon.com/Pacon-Grid-Roll-Inch-Rule/dp/B000XP23O8/
It is more expensive, but 200 ft should last awhile.
Worst case you can find a roll of cheap paper and add the grid yourself.
On Amazon, you can find a massive roll of 1-inch graph paper for a very reasonable price. I just bought that and have been drawing my maps up on it prior to the session ever since. I’ve drawn over 50 maps and have barely made a dent in the roll.
I just got a roll of grid paper on Amazon. It’s sturdier than wrapping paper, and it’s uncoated, so you can use pencils or markers without an issue.
Note: the grid on the featured picture looks awful. The grid is much less thick and not as intense. The photos of it being used are more accurate.
If you're looking to buy a big roll, Amazon Canada has one for $45.
Alternatively you can find wrapping paper that has a grid on the back and stock up after holidays from a brick-and-mortar store.
Here's the specific one I got:here
Small downside though - although it's 34 1/2 inch wide, the lines on mine at least didn't start at a particular edge, and in fact, they had about 3/4" before they got to a line on either side, which meant it was 33 squares wide, making it slightly awkward when translating from 10' square maps in the book, and meaning things weren't exactly centered unless you cut off an inch of the width. Still, a nice wide roll.
Another possibility. Get lots of large format graph paper. That way you can make multiple maps instead of having to erase and redraw whenever the group moves. 34 inch paper in a 200 foot roll is about 36 bucks.
However, you may be better off getting several of the laminated sheets instead in the long term, as they will last you longer if properly kept.
For a one time investment, you will never need to buy grid paper ever again. Ok, that's a lie. Each one lasts about a year in my experience. We use like 4-5 feet of it each session, but the size and ability to erase lets us keep track of temporary modifiers, hitpoints, Spells/day, active effects right in view of everyone. It also lets the DM reuse or modify maps as necessary. I think he keeps them in labeled poster tubes in his closet, personally...
Here are some more ideas for running D&D games on a budget.
For tactical combat maps, you can get loads of graph paper for pretty cheap.
Instead of minis, you could use meeples. They're endlessly reusable. Today, they're goblins. Tomorrow they're orcs. The next day, owlbears.
https://www.amazon.com/gp/product/B000XP23O8
And I just used Crayola washable markers. Not much bleed through but I also didn't shade or press too hard.
200’ roll of 1” grid graph paper
34” wide, great for hand-drawn battle maps!
Pacon 0077810 Paper Grid Roll with 1" Grid Rule, 34-1/2" x 200' Size, White https://smile.amazon.com/dp/B000XP23O8/ref=cm_sw_r_cp_api_glt_fabc_GX78MFB3CVND9TJKBTR4?_encoding=UTF8&psc=1
Something like this^
Combat maps: transfer important map features by hand onto large grid paper e.g. https://www.amazon.ca/Pacon-0077810-Paper-Grid-White/dp/B000XP23O8
Minis: copying from this comment
> If you play with battlemaps, these two sites will make your prep infinitely easier:
> 2-Minute Token Editor: https://tools.2minutetabletop.com/token-editor/
> Huge repository of token-size characters, with configurable colors, easily exportable.
> Token Stamp 2: http://rolladvantage.com/tokenstamp/
> Upload an image, turn it into a circular token.
I got this, a little while back:
https://www.amazon.com/gp/product/B000XP23O8/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
It has done its job, damn well.
Here are some other options.
https://www.amazon.com/Pacon-Grid-Roll-Inch-Rule/dp/B000XP23O8
https://www.amazon.com/Pacon-Heavy-Anchor-Chart-Paper/dp/B00LK1DM3K
The 200 foot roll is a little ridiculous, and would probably only make sense for a D&D club or game store. But the pads would be easy to divide up and come out being cheaper per square foot than gaming paper. There are lots of easel pads at various prices on Amazon.