Is this rude?

I would talk to your FH and see what he thinks. It doesn’t feel a little odd to have photos from just one side of the family. But it’s a beautiful idea. We are displaying the grandparents weddings photos:

Talk to your FH, but personally I would find this very odd to only have photos of one family. It’s a lovely tribute, we did a similar one, but I would find something that doesn’t exclude your soon to be in laws.

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Do you think if I just do my two sets of grandparents and his one grandparent it would feel less like an exclusion?

As long as your FH doesn’t feel uncomfortable, it’s perfectly fine to do this (and it’s a nice idea).
I’d also display a photo of MOG with her late husband (it doesn’t have to be a wedding photo, just find one where they look fancy lol). That way you’ll have 2 couples from FH family & 3 from yours, so it won’t be skewed at all. Also, besides family, no guest will know if FH or your side of the family is in the photos, so really not a big deal.

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That's a good idea. I will ask for a nice photo of them.

Definitely don’t only do pics from your side, that would be weird (even if it doesn’t bother FH personally, someone in his family would likely have feelings about it...)
But you could definitely just do couples pictures, acknowledging all the mentioned relationships even if there’s not a formal marriage binding them. If you include your parents, I’d also include one each of his parents and their respective partners. Instead of it being a display to “celebrate marriage” have it simply be a display to “celebrate love”

I agree with PPs that you should see how your FH feels about it. I also agree that you wouldn't necessarily need wedding photos, but just couple photos (maybe for both sides, so you don't have all weddings on your side and none on his lol).

Thank you! I like this idea. Hopefully, everyone has nice photos we can use. I'd really love for them to be older photos and not recent ones. Everyone has been together long enough it should be possible.

I have talked to FH and he said it's not our fault they didn't get married. 😆🙃 so he's not helpful, but Ilike the idea of just fancy couple photos.

Ask your FH. Mine did not want a photo of his mother who passed because he was worried he & his brother would tear up (and he wanted happy, not sad, feelings at our wedding). I thought about having my grandparents’ wedding photos but my hubby didn’t know his father or that side of the family and his grandmother left her abusive husband so I didn’t think it was fair for me to have two photos of happy married couples and only his grandma on his side. My hubby is very sentimental and I didn’t want to upset him. So we skipped a family photo table.

Maybe you could do your siblings and parents wedding photos at their table as part of the decor? That way you and your family can still have a moment to look at the old photos together and it won't be be in the face of anyone not married or widowed. My friend recently went to a wedding and instead of escort cards, they had a photo of the guest with their table number on it. It was really cute! That could also be a way to show off the wedding photos of married couples and still include photos of everyone.

My cousin did a family picture table at our wedding. Divorced couples were shown separately, married couples were shown together. Family alive or passed were both pictured.

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Yes I think this feels better to do your two sets of grandparents and his one set of grandparents. I thought a display like this would be nice too but one set of my grandparents got divorced and only one got remarried, and it was the same with one set of his grandparents so it would get too messy and although we were both closer to our step-grandparents, it would leave out one biological grandparents on each side.