The ones from the store, like everything else there, will work with just the base game installed. Bunk beds did first appear with Generations, but there are also bunk beds in Supernatural and Uni. Not sure if Seasons had any or not. You don't need any EP's for store items to work. I really really really want bunk beds and I cant find any mods for them and I cant build one in my sims house so please could someone suggest a link.

v. 1.57.62

Changelog:

Base Game Updates

The Brambles shrub can now be placed.

Fixed an issue that could occur where Sims would get “stuck” moving to a new world.

Child Sims will no longer “Play in Sand” indoors where there is no sand.

Textures on the undersides of roofs have been fixed.

Fixed an issue that prevented multiple rabbit holes across various worlds from being routable.

World Adventures Updates

World Adventures tents can now be placed back into inventory.

Ambitions Updates

The Gnubb Set now works properly.

Ghost Hunting and Fire Fighting jobs will no longer occur on resort lots if the player has The Sims 3 Island Paradise installed.

Late Night Updates

Drinks ordered from the pool bar will no longer be only bad or foul quality if the player has The Sims 3 Island Paradise installed.

Generations Updates

Elder canes now work properly.

Sims will no longer route through walls to climb to the top bunk of a bunk bed.

Seasons Updates

Snow angels now work properly.

Alien abductions have been disabled on houseboats if the player has The Sims 3 Island Paradise installed.

University Life Updates

Sims can take photos with friends again.

Island Paradise Updates

Mermaid Children can now take showers.

Sims will now take boats, if they are the best option, when directed to snorkel elsewhere while swimming in the ocean.

Sometimes the ocean would reset when Sims woohooed in the underwater cave, because it was just THAT good! This has been fixed.

Fixed an issue with the underwater cave where the tentacles waved forever, preventing Sims from entering the cave.

Sims will no longer pop out of the underwater cave when canceling woohoo.

Sims no longer route fail when directed to fish while in the basement of a houseboat.

Shells found while snorkeling now count towards wish fulfillment.

The text description of the “Narrow Barge Style Houseboat” now reflects its proper size: 20×6

Fixed two occurrences where a houseboat could be created on top of another houseboat thus causing both houseboats to be stuck for eternity…which is a very long time.

Sims can now route properly up consecutively stacked staircases on houseboats.

Self-employed Sims can now check into resorts without the game freezing.

Sims can now relax on floor tiles.

Triple 3 Bunk Bed

Outdoor grills and easels now work on Private Lots.

The Sims 3 Bunk Bed Download

Create-A-World tool Updates

Fixed a bug where deleting a houseboat lot via Edit in Game could cause an infinite load.

Report problems with download to support@gamepressure.com

Sims 4 Bunk Bed Frame