Twins at 6 Months: High Chairs, Solids Gear, and the Stroller Swap

Six months with twins is the biggest gear turnover of the first year. The bassinets are done, solids start, both babies want to sit up and see the world, and the newborn stroller setup stops making sense. It is also the month where the buy-two list gets expensive, because high chairs and cribs do not share. Here is what retires, what arrives, and where to spend versus save.

What changes at 6 months#

Rolling both ways, sitting with support and then without, grabbing everything on the table, and, for most twins, the start of solids around this point (your pediatrician sets the timing; preemie twins go by adjusted age). The twin-specific wrinkle is that one baby often sits a full month before the other, and the temptation is to start solids with the sitter and wait on the other. We'd wait and start both together. Two feeding routines on one adult's schedule is worse than starting the second baby a few weeks later than they could have. Night sleep also tends to consolidate around now, which is when most twin parents we know moved from bassinets in the bedroom to cribs in the nursery.

Gear that retires#

• Bassinets, both. Weight limits and rolling end them. The AAP's room-sharing recommendation runs to at least six months, so this is a natural handoff to cribs in their own room if the babies are ready and you are.
• The frame stroller (Joovy Twin Roo+ or similar). Babies who want to sit up and look around are done lying in an infant seat on a frame.
• Swings. Most have weight or developmental limits around sitting up, and two sitting babies in two swings is a lot of floor space for something they've stopped using.
• The arms-up transition swaddles and Merlin suits. Straight to sleep sacks from here.
• 3 to 6 month clothes, for the bigger twin first, then the other one two weeks later. Same drill: bin, label, list.

Gear that arrives#

• Two cribs and two new crib mattresses if you haven't bought them yet. Buy the cribs used if you can verify the model isn't recalled and the hardware is complete; buy the mattresses new (used crib mattresses are advised against). Two Ikea Sniglars at around $80 each with two Graco Premium Foam mattresses is a perfectly good twin nursery.
• High chairs: buy two. This is not a share item. The Ikea Antilop at around $20 each is the universal twin default, and two of them cost less than one of anything else. If the dining room is tight, two Fisher-Price SpaceSavers strap onto existing chairs. Two Stokke Tripp Trapps are lovely and last a decade, but that's $600 for chairs, so buy them used.
• Solids gear: two EZPZ Mini Mats (they suction to the tray, which matters when two babies discover throwing on the same afternoon), a couple of Bumkins SuperBib packs, and four to six Olababy soft spoons for parallel feeding. Skip the baby-food maker; a fork and a steamer basket do the job at twin volume.
• The real double stroller, if you've been on the frame. This is the swap month. A side-by-side like the City Mini GT2 Double for parks and sidewalks, or an inline like the UPPAbaby Vista V2 with two seats if doorways are your constraint. Buy it used; six-month-old doubles are everywhere on twin resale groups.
• A monitor with two cameras, if the babies are moving to the nursery. One system, two cameras, one screen. The Infant Optics DXR-8 Pro with an add-on cam or the Eufy SpaceView Pro plus a second camera both work without wifi.
• Jumpers and activity centers: maybe. One Fisher-Price SpaceSaver Jumperoo entertains one baby while you feed the other, and that's the actual use case. Two is a lot of living room. Skip if the bouncers are still in service.

The spend this month can run past $1,000 if you buy everything new in one week, so sequence it. Cribs and mattresses first, because sleep is the thing that breaks. High chairs and mats the week before solids start; two Antilops and two mats is under $100. The double stroller last, and used, once you know whether doorways or terrain is your real constraint. The monitor only if the babies actually move rooms. Most twin parents we know spread this across six weeks and sold the six-month batch to fund it.

What to sell or store now#

The six-month resale batch is the valuable one: both bassinets, the frame stroller, both swings, the transition sleep suits, and the 3 to 6 month clothes. Bassinets and swings hold value because they're used for a short window and buyers know it. List them as a twin pair on a multiples group; twin parents will pay for the matched set and save you two separate sales. Keep the bouncers until month nine, because a bouncer is still the safest place to park baby two during a diaper change.

What we'd do#

Move both babies to cribs the same weekend, buy two Antilops and two EZPZ mats before the first solids meal, and swap the frame stroller for a used double the same month. Sell the bassinets and swings as a pair while they're still clean. Start solids with both twins on the same day, even if one has been ready for a few weeks. The gear is expensive this month. The routine, once it's set, is the payoff.

Related reading#

• Twins at 3 months: what gear retires and what arrives
• Twins at 9 months: crawling, gates, and the playpen question
• Setting up a solid food station for twins
• When to move twins from bassinets to cribs